Bottle-stopper.



R. BEHRENS. BOTTLE STOPPER- APPLICATION FILED SEPT- H, 1915 Pmented J une 20, 1916.

THE COLUMBIA PLANOGRAPH c0, WASHINGTON, D. c.

TINTTEU @TATE PATENT RUDOLF BEHRENS, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO JAMES H. BOWE,

OF NEW YORK, N. Y.

BOTTLE-STOPPER.

Application filed September 17, 1915.

To all whom it may concern Be it known that I, RUDoLF BEHRENs, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Bottle- Stoppers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The primary object of this invention is to provide a bottle stopper, that will accommodate the usual construction of bottle necks, and which will automatically open when the bottle is inverted, so that the contents. can be poured therefrom andwill automatically return to closing position, when the bottle is again placed in upright position.

Another object of the invention is to pro vide a stopper for carrying out the above object, and which will be of simple construction, can be cheaply manufactured, will be durable, and eflicient in operation.

Other objects will appear and be better understood that embodiment of my invention, of which the following is a specification, reference being had to the accompanying drawings forming apart thereof, in which Figure 1 is a vertical sectional view taken through a bottle neck, showing the improved stopper applied thereto, Fig. 2 is a horizontal section taken through the bottle neck and the stopper.

Referring to the drawings, the letter A designates the upper end of a bottle, having the usual bottle neck B secured thereto.

The bottle stopper comprises a substantially semi-spherical head 1, the diameter of which exceeds the internal diameter of the bottle neck, and has its lower side normally resting on the upper edge of the bottle neck, and provided with a depending substantially conical shaped projection 2, which fits within the bottle neck, and which has a diameter which is considerably smaller than the internal diameter of the bottle neck. The upper end of the projection 2 gradually merges into the lower side of the head 1, as shown at 3, and engages the inner surface of the upper edge of the bottle neck, and serves to prevent lateral movement of the head, when the bottle is in up- Specification of Letters Patent.

Patented June so, 1916.

Serial No. 51,215.

cated at substantially obtuse angles to each other and provide therebetween channels 5. The upper ends of the ribs are beveled,-so that they lie in spaced relation with the upper end 3 of the projection 2, and the lower side of the head 1, so as to provide an outlet 7. Certain of the ribs are provided, adjacent their lower ends, with tran verse openings 8, shown in dotted lines in Fig. 2. Positioned at the lower end of the conical projection 2, is a retaining member 9, formed of a piece of spring Wire having its opposite end extending through the openings 8 formed in the respective ribs, and has the terminals of the ends extending beyond the ribs, and positioned in spaced relation with the inner surface of the lower end of the bottle neck, the said retainer'having the portion located between the ribs, curved, as shown at 10, so as to agree with the curvature of the projection 2.

In use, when the bottle is inverted, the liquid will cause the head 1 to move away from the upper end of the bottle neck, so as to cause the projection 2 to slide outwardly, so that the outlet 7 will be positioned beyond the edge of the bottle neck. When the projection 2 is moved far enough outwardly, to cause the opposite ends of the retainer to engage the inner surface of the bottle neck, further movement of the projection 2 will be prevented. The liquid then finds escape through the channels 5 and outlet 7, into the receptacle provided for the reception of the liquid. When the bottle is again placed in upright position, the head 1 will descend by gravity, thereby sliding the projection 2 downwardly in the neck I), causing the lower side of the head 1 to engage the upper edge of the bottle, and the opposite ends of the retaining member 9 to become disengaged from the inner surface of the bottle neck.

Having thus described my invention,what I claim as new is The combination with a bottle neck having an upwardly tapered bore therein, of a stopper for normally closing the neck and adapted to move to open position when the bottle is inverted, a cylindrical projection carried by the Stopper and extending into Ythe bore in the bottle neck, longitudinally tending through the openings in the ribs on the projection and having that portion located between the ribs curved, the opposite ends of the Wire belng extended horizontally beyond the adjacent sides of the projection and at right angles thereto and normally spaced from the walls of the bore in the bottle neck, and adapted to engage the walls 01": the bore when the stopper is moved to open position.

In testimony whereof I aliix my signature in presence of two witnesses.

RUDOLF BEI-IRENS. Witnesses A. H. DAVIS, TiIoMAs M. FARRELL.

coples'of this patent may be obtainedior five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

